Bleeding after sex 22 weeks

Last night my husband and I became intimate he noticed I was bleeding. So we went to the er and they just put me on a monitor for a couple of hours and sent me home. I slept for several hours and when I woke up I bleed more and it was a dark red and brown. So I went back in to check they did they same thing sent me home. I hate the that I’m still bleeding and I’m not sure why or if anything else is going to happen I’m freaking out and I can’t see my doctor till Wednesday. So the wait begins... Has this happen to anyone else????